x2-5x+6=0
D=1
x=3
x=2
(x-2)(x-3)
x2+4x-5=0
D=36
x=1
x=-5
(x-1)(x+5)
x2+5x-24=0
D=121
x=-8
(x-3)(x+8)
x2-5x+6=0
D=1
x=3
x=2
(x-2)(x-3)
x2+4x-5=0
D=36
x=1
x=-5
(x-1)(x+5)
x2+5x-24=0
D=121
x=3
x=-8
(x-3)(x+8)